Henry howarth



No'ModeL H. HOWARTH.

TRANSOM PIVOT. No. 499,923. Patented June 20, 1893..

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UNITED STATEs PATENT OFFICE- HENRY HOVVARTH, OF DETROIT, MICHIGAN, ASSIGNOR TO TI-lE HOWARTH REVERSIBLE SASH AND SASH CENTER COMPANY, OF SAME PLACE.

TRANSOM-PIVOT.

SPECIFICATION forming part of Letters Patent No. 499,923, dated J une 20, 1893.

I Application filed November 14, 1892. Serial No. 451,!)33. (No model.)

Ta all'whomit mar/y concern.- K are securing apertures formed in the Be it known that I, HENRY I-IOWARTH, a plate, outside the flange. citizen of the United States, residing at De- L is asecuring aperture inone of the halves 5 troit, in the county of Wayne and State of within the flange. 5 Michigan, have invented certain new and use- The parts being thus constructed the operful Improvements in WVindow-Sash Centers, ator finds the center line on the frame and of Which the following is a specification, refsecures thereto the two lowerhalves F' of the erence being had therein to the accompanycenter at opposite sides, countersinking the ing drawings. v plates liush with the face of the frame. He

[O This invention consists in the peculiar conthen secures the pivoted base of the center to struction of a center especially adapted for the sash, preferably countersinking them, as hanging heavy sashes from the sides and so shown in Fig. 2, and then engages the pins constructed that one man alone can hang the into the half sockets already secured in posisash,and further wherebya simple and strong tion, and the frame will rest therein and the 15 construction is obtained witha dust and sightoperator may turn it to its horizontal posiproof joint, all as more fully hereinafter detion, as shown in Fig. 3 and insert the upper scribed. half of the socket, securing them by means of In the drawings, Figure 1 is a perspective suitable screws M, when the device will be 6o view of the parts of my sash center detached. complete. The upper half is more readily sezo Fig. 2 is a vertical, central section through cured by beveling the upper edge of the plate my sash center showing it as applied in use. F, as shown at N. Fig. 3 is an elevation of a window frame The inclined face C, the inclined upper face illustrating the mannerof applying my cenof the cone D and the inclined face N on the ter. plate all aid in inserting the upper plate after 25 A is a plate, preferably circular. Centrally. the lower plate is in position and the sash is upon one side of this plate is formed agraduhung from the pivots. I ally enlarging pin orstud B. The upper face What I claim as my invention is- C of the plate around the pin is inclined up- A sash center consisting of apivot member Ward from the edge toward the pin, and the having a pivot pin thereon formed with sides 0 upper face D of the pin or stud is convex,'or inclining outwardly from a point adjacent to substantially conical: The plate A around the base, and a socket member having its inthe pin is provided with suitable apertures E ner walls of a contour substantially that of by means of which it may be secured to the the pin head, and divided centrally into two sash. This forms the pivot member of my sections each provided at onc side only with 5 sash center. The socket member thereof is outwardly extending perforated plates, subcomposed of two complementary plates F F', stantially as described. each of which has formed on its inner edge a In testimony whereof Iaflix my signaturein semicircular flange G, the inner face I'I of presence of two witnesses.

which is inclined inward toward its base and I-IENRY HOWARTH. 40 the plate within the ilange is concave, as Witnesses:

shown at I, the top of the iiange J inclining M. B. DOGHERTY,

inwardly. N. L. LINDOP. 

